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Microorganisms and Disease

Microorganisms and Disease
An important host defense of human beings is a dense resident microbiota associated with

vagina
bladder
lungs
uterus

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Microorganisms and Disease
Both Mycobacterium tuberculosis and Streptococcus pneumoniae

have cell walls that contain a high content of mycolic acids
are acquired by inhalation
stay in the lung and rarely, if ever, enter the bloodstream
have polysaccharide capsules

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Microorganisms and Disease
Immunization with which of the following toxoid induces high titer serum antibody, but does not protect from the corresponding disease?

Tetanus
Shigellosis
Botulism
Diphtheria

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Microorganisms and Disease
Which of these cytokines is also known under the name cachectin?

None of these
Interferon gamma
Interleukin 2
Tumor necrosis factor (TNF)

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Microorganisms and Disease
The toxins produced by bacteria

All of these
kill viruses
encourage bacterial reproduction
interfere with physiological processes in the body

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Microorganisms and Disease
Which of the following disease is caused by DNA viruses?

Measles
Poliomyelitis
Small pox
Yellow fever

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